Since we moved into this lovely but unheated house 2.5 yrs ago, my DS1 developed asthma. A few times, he's had to go on the nebuliser, and has chest infections that make him wheezy 3-4 times a year. His inhalers are the strongest possible, but dn't seem to have any effect, and he doesn't get asthma attacks after running around, getting breathless.
Do you think the cold house could have something to do with it, or is it just coincidence?